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19 years ago[PATCH] hwmon: (2/3) pc87360 driver update
Jim Cromie [Fri, 2 Sep 2005 20:57:52 +0000 (22:57 +0200)]
[PATCH] hwmon: (2/3) pc87360 driver update

pc87360: number-skew to init

The temp, therm, fan, pwm callbacks all have an offset skew in the code
which accommodates attribute numbering conventions under
/sys/bus/i2c/devices/9191-6620/ (ie they start at 1)

This patch moves that skew into the declaration, and out of the
functions (except for therm, where we simplify from 2 skews to 1). The
declarative skew is clearer, less error-prone, and more efficient.

The use of 11+offset-4 below reflects the fact that the sysfs numbering
of these units is 4, 5, 6, but they use internal VLM units 11, 12, 13 to
measure the thermistor voltages.

There's one remaining skew factor, in *_crit callbacks below, because
there are no critical thresholds for voltages 0-10, only for those
supporting the thermistors.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: (1/3) pc87360 driver update
Jim Cromie [Fri, 2 Sep 2005 20:52:43 +0000 (22:52 +0200)]
[PATCH] hwmon: (1/3) pc87360 driver update

Use the new "dynamic sysfs callbacks", as introduced recently by Yani
Ioannou, in pc87360.

Note that this change isn't indiscriminate.  Only those attributes that
would benefit from having an index (i.e., those which are
macro-repeated) have been converted.

This significantly shrinks the size of the module:
  before:  49235  drivers/hwmon/pc87360.ko
  after:   32532  drivers/hwmon/pc87360.ko

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Fix sgi_xfer return value
Jean Delvare [Fri, 2 Sep 2005 19:28:00 +0000 (21:28 +0200)]
[PATCH] I2C: Fix sgi_xfer return value

The sgi_xfer function returns 0 on success instead of the number of
transfered messages as it is supposed to. This patch fixes that.

Let's just hope that no client chip driver was relying on this
misbehavior.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] i2c: bug fix for busses/i2c-mv64xxx.c
Jean Delvare [Fri, 2 Sep 2005 19:25:47 +0000 (21:25 +0200)]
[PATCH] i2c: bug fix for busses/i2c-mv64xxx.c

When an i2c transfer is successful, an incorrect value is returned.
This patch fixes that.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] i2c: chips/ds1374.c fixup
Mark A. Greer [Fri, 2 Sep 2005 01:12:04 +0000 (18:12 -0700)]
[PATCH] i2c: chips/ds1374.c fixup

The 'new_time' variable should be static.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] i2c: chips/m41t00.c fixup
Mark A. Greer [Fri, 2 Sep 2005 01:09:54 +0000 (18:09 -0700)]
[PATCH] i2c: chips/m41t00.c fixup

The 'new_time' variable should be static.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Drop probe parameter of i2c-keywest
Jean Delvare [Mon, 29 Aug 2005 19:10:31 +0000 (21:10 +0200)]
[PATCH] I2C: Drop probe parameter of i2c-keywest

The i2c-keywest driver has a "probe" module parameter which enables bus
scanning at load time. This can be done in userspace with the i2cdetect
tool (part of the lm_sensors package) instead. What's more, i2cdetect
gives more control on the way the bus is scanned, and is safer
(i2c-keywest currently scans reserved addresses and doesn't properly
handle the famous 24RF08 corruption case.)

Thus, I would propose that this module parameter be simply dropped.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Drop debug eeprom dump code in pcilynx
Jean Delvare [Thu, 25 Aug 2005 14:43:29 +0000 (16:43 +0200)]
[PATCH] I2C: Drop debug eeprom dump code in pcilynx

The pcilynx driver includes code to dump the contents of an i2c eeprom
for debugging purposes. The same can be done from userspace using the
i2cdump tool (part of the lm_sensors project) instead, in a more
efficient and flexible way.

Thus I would suggest that this functionality be simply dropped from the
pcilynx driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years agoMerge HEAD from gregkh@master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6.git
<greg@echidna.(none)> [Mon, 5 Sep 2005 16:20:31 +0000 (09:20 -0700)]
Merge HEAD from gregkh@master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6.git

19 years ago[PATCH] I2C: Drop I2C_DEVNAME and i2c_clientname
Jean Delvare [Mon, 15 Aug 2005 17:57:04 +0000 (19:57 +0200)]
[PATCH] I2C: Drop I2C_DEVNAME and i2c_clientname

I2C_DEVNAME and i2c_clientname were introduced in 2.5.68 [1] to help
media/video driver authors who wanted their code to be compatible with
both Linux 2.4 and 2.6. The cause of the incompatibility has gone since
[2], so I think we can get rid of them, as they tend to make the code
harder to read and longer to preprocess/compile for no more benefit.

I'd hope nobody seriously attempts to keep media/video driver compatible
across Linux trees anymore, BTW.

[1] http://marc.theaimsgroup.com/?l=linux-kernel&m=104930186524598&w=2
[2] http://www.linuxhq.com/kernel/v2.6/0-test3/include/linux/i2c.h

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: separate maintainer
Jean Delvare [Mon, 15 Aug 2005 17:51:02 +0000 (19:51 +0200)]
[PATCH] hwmon: separate maintainer

Now that the hardware monitoring drivers are no more part of the i2c
subsystem, they probably deserve their own entry in MAINTAINERS.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Outdated i2c_adapter comment
Jean Delvare [Sat, 13 Aug 2005 11:04:32 +0000 (13:04 +0200)]
[PATCH] I2C: Outdated i2c_adapter comment

Delete an outdated comment about i2c_algorithm.id being computed
from algo->id.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Kill i2c_algorithm.id (7/7)
Jean Delvare [Thu, 11 Aug 2005 21:52:35 +0000 (23:52 +0200)]
[PATCH] I2C: Kill i2c_algorithm.id (7/7)

The I2C_ALGO_* constants have no more users, delete them. Also update
the comments in i2c-id.h so that they reflect the current state of the
file.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Kill i2c_algorithm.id (6/7)
Jean Delvare [Thu, 11 Aug 2005 21:51:10 +0000 (23:51 +0200)]
[PATCH] I2C: Kill i2c_algorithm.id (6/7)

In theory, there should be no more users of I2C_ALGO_* at this point.
However, it happens that several drivers were using I2C_ALGO_* for
adapter ids, so we need to correct these before we can get rid of all
the I2C_ALGO_* definitions.

Note that this also fixes a bug in media/video/tvaudio.c:

/* don't attach on saa7146 based cards,
   because dedicated drivers are used */
if ((adap->id & I2C_ALGO_SAA7146))
return 0;

This test was plain broken, as it would succeed for many more adapters
than just the saa7146: any those id would share at least one bit with
the saa7146 id. We are really lucky that the few other adapters we want
this driver to work with did not fulfill that condition.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Kill i2c_algorithm.id (5/7)
Jean Delvare [Thu, 11 Aug 2005 21:41:56 +0000 (23:41 +0200)]
[PATCH] I2C: Kill i2c_algorithm.id (5/7)

Merge the algorithm id part (16 upper bits) of the i2c adapters ids
into the definition of the adapters ids directly. After that, we don't
need to OR both ids together for each i2c_adapter structure.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Kill i2c_algorithm.id (4/7)
Jean Delvare [Thu, 11 Aug 2005 21:40:19 +0000 (23:40 +0200)]
[PATCH] I2C: Kill i2c_algorithm.id (4/7)

There are no more users of i2c_algorithm.id, so we can finally drop
this structure member.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Kill i2c_algorithm.id (3/7)
Jean Delvare [Thu, 11 Aug 2005 21:38:52 +0000 (23:38 +0200)]
[PATCH] I2C: Kill i2c_algorithm.id (3/7)

Don't rely on i2c_algorithm.id to alter the i2c adapter's id, use the
I2C_ALGO_* value directly instead, because i2c_algorithm will soon
have no id member no more.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Kill i2c_algorithm.id (2/7)
Jean Delvare [Thu, 11 Aug 2005 21:36:49 +0000 (23:36 +0200)]
[PATCH] I2C: Kill i2c_algorithm.id (2/7)

Use the adapter id rather than the algorithm id to detect the i2c-isa
pseudo-adapter. This saves one level of dereferencing, and the
algorithm ids will soon be gone anyway.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Kill i2c_algorithm.name (1/7)
Jean Delvare [Thu, 11 Aug 2005 21:33:24 +0000 (23:33 +0200)]
[PATCH] I2C: Kill i2c_algorithm.name (1/7)

The name member of the i2c_algorithm is never used, although all
drivers conscientiously fill it. We can drop it completely, this
structure doesn't need to have a name.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Centralize 24RF08 corruption prevention
Jean Delvare [Tue, 9 Aug 2005 18:28:10 +0000 (20:28 +0200)]
[PATCH] I2C: Centralize 24RF08 corruption prevention

The 24RF08 corruption would better be prevented at i2c-core level than
at chip driver level, for several reasons:
* The second quick write should happen as soon as possible after the
  first one, so as to limit the risk that another command is issued on
  the bus inbetween, causing the corruption.
* As a matter of fact, the protection code at driver level was reworked
  at least three times already, which proves how hard it is to get it
  right there, while it's straightforward at i2c-core level.
* It's easy to add a new driver that would need the protection, and
  forget to add it. This did happen already.
* As additional probing addresses can be passed to most i2c chip drivers
  as module parameters, virtually every i2c chip driver would need the
  protection if we want to be really safe.
* Why duplicate code when we can easily avoid it?

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Rewrite i2c_probe
Jean Delvare [Tue, 9 Aug 2005 18:17:55 +0000 (20:17 +0200)]
[PATCH] I2C: Rewrite i2c_probe

i2c_probe was quite complex and slow, so I rewrote it in a more
efficient and hopefully clearer way.

Note that this slightly changes the way the module parameters are
handled. This shouldn't change anything for the most common cases
though.

For one thing, the function now respects the order of the parameters
for address probing. It used to always do lower addresses first. The
new approach gives the user more control.

For another, ignore addresses don't overrule probe addresses anymore.
This could have been restored the way it was at the cost of a few more
lines of code, but I don't think it's worth it. Both lists are given
as module parameters, so a user would be quite silly to specify the
same addresses in both lists. The normal addresses list is the only
one that isn't controlled by a module parameter, thus is the only one
the user may reasonably want to remove an address from.

Another significant change is the fact that i2c_probe() will no more
stop when a detection function returns -ENODEV. Just because a driver
found a chip it doesn't support isn't a valid reason to stop all
probings for this one driver. This closes the long standing lm_sensors
ticket #1807.

  http://www2.lm-sensors.nu/~lm78/readticket.cgi?ticket=1807

I updated the documentation accordingly.

In terms of algorithmic complexity, the new code is way better. If
I is the ignore address count, P the probe address count, N the
normal address count and F the force address count, the old code
was doing 128 * (F + I + P + N) iterations max, while the new code
does F + P + ((I+1) * N) iterations max. For the most common case
where F, I and P are empty, this is down from 128 * N to N.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: VID table update
R.Marek@sh.cvut.cz [Fri, 5 Aug 2005 15:40:11 +0000 (15:40 +0000)]
[PATCH] hwmon: VID table update

This patch updates the VID entries, so any future
Intel CPU will be detected as unknown rather than 9.0

Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (11/11)
Jean Delvare [Sun, 31 Jul 2005 20:12:09 +0000 (22:12 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (11/11)

Use the common vid_from_reg function in lm78 rather than
reimplementing it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (10/11)
Jean Delvare [Mon, 1 Aug 2005 20:50:08 +0000 (22:50 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (10/11)

I see very little reason why vid_from_reg is inlined. It is not
exactly short, its parameters are seldom known in advance, and it is
never called in speed critical areas. Uninlining it should cause
little performance loss if any, and saves a signficant space as well
as compilation time.

As suggested by Alexey Dobriyan, I am leaving vid_to_reg inline for now,
as it is short and has a single user so far.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (09/11)
Jean Delvare [Sun, 31 Jul 2005 19:57:33 +0000 (21:57 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (09/11)

Delete DEFAULT_VRM from hwmon-vid.h, it has no more users.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (08/11)
Jean Delvare [Sun, 31 Jul 2005 19:54:28 +0000 (21:54 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (08/11)

Cleanup hwmon-vid a bit, fixing typos, rewording some comments and
reindenting properly at places.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (07/11)
Jean Delvare [Sun, 31 Jul 2005 19:52:01 +0000 (21:52 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (07/11)

The only part left in i2c-sensor is the VRM/VRD/VID handling code.
This is in no way related to i2c, so it doesn't belong there. Move
the code to hwmon, where it belongs.

Note that not all hardware monitoring drivers do VRM/VRD/VID
operations, so less drivers depend on hwmon-vid than there were
depending on i2c-sensor.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (06/11)
Jean Delvare [Sun, 31 Jul 2005 19:49:03 +0000 (21:49 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (06/11)

The only thing left in i2c-sensor.h are module parameter definition
macros. It's only an extension of what i2c.h offers, and this extension
is not sensors-specific. As a matter of fact, a few non-sensors drivers
use them. So we better merge them in i2c.h, and get rid of i2c-sensor.h
altogether.

Signed-off-by: Jean Delvare <khali@linux-fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (05/11)
Jean Delvare [Sun, 31 Jul 2005 19:45:27 +0000 (21:45 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (05/11)

The i2c_detect function has no more user, delete it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (04/11)
Jean Delvare [Sun, 31 Jul 2005 19:42:02 +0000 (21:42 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (04/11)

i2c_probe and i2c_detect now do the exact same thing and operate on
the same data structure, so we can have everyone call i2c_probe.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (03/11)
Jean Delvare [Sun, 31 Jul 2005 19:36:24 +0000 (21:36 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (03/11)

We now have two identical structures, i2c_address_data in i2c-sensor.h
and i2c_client_address_data in i2c.h. We can kill one of them, I choose
to keep the one in i2c.h as it makes more sense (this structure is not
specific to sensors.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (02/11)
Jean Delvare [Sun, 31 Jul 2005 19:33:23 +0000 (21:33 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (02/11)

The way i2c-sensor handles forced addresses could be optimized. It
defines a structure (i2c_force_data) to associate a module parameter
with a given kind value, but in fact this kind value is always the
index of the structure in each array it is used in. So this additional
value can be omitted, and still be deduced in the code handling these
arrays.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: hwmon vs i2c, second round (01/11)
Jean Delvare [Sun, 31 Jul 2005 19:20:43 +0000 (21:20 +0200)]
[PATCH] hwmon: hwmon vs i2c, second round (01/11)

Add support for kind-forced addresses to i2c_probe, like i2c_detect
has for (essentially) hardware monitoring drivers.

Note that this change will slightly increase the size of the drivers
using I2C_CLIENT_INSMOD, with no immediate benefit. This is a
requirement if we want to merge i2c_probe and i2c_detect though, and
seems a reasonable price to pay in comparison with the previous
cleanups which saved much more than that (such as the i2c-isa cleanup
or the i2c address ranges removal.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: lm85: trivial cleanups
Jean Delvare [Fri, 29 Jul 2005 18:51:54 +0000 (20:51 +0200)]
[PATCH] hwmon: lm85: trivial cleanups

Remove an unused macro and an outdated comment from the lm85 driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: move SENSORS_LIMIT to hwmon.h
Jean Delvare [Thu, 28 Jul 2005 21:14:59 +0000 (23:14 +0200)]
[PATCH] hwmon: move SENSORS_LIMIT to hwmon.h

Move SENSORS_LIMIT from i2c-sensor.h to hwmon.h, as it is in no way
related to i2c.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Improve core debugging messages
Jean Delvare [Sun, 31 Jul 2005 17:02:53 +0000 (19:02 +0200)]
[PATCH] I2C: Improve core debugging messages

The debugging messages in i2c-core are more confusing than helpful. Some
lack their trailing newline, some lack a prefix, some are redundant,
some lack precious information. Here is my attempt to introduce some
standardization in there.

I also changed two messages in i2c-dev to make it clear they come from
i2c-dev.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: fix typo in documentation
Jean Delvare [Thu, 28 Jul 2005 21:08:43 +0000 (23:08 +0200)]
[PATCH] I2C: fix typo in documentation

Fix a typo in the i2c documentation: the i2c bus scanning tool found in
lm_sensors is called i2cdetect, not i2c_detect.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: i2c-algo-pca -- gracefully handle a busy bus
Ian Campbell [Wed, 10 Aug 2005 07:51:16 +0000 (08:51 +0100)]
[PATCH] I2C: i2c-algo-pca -- gracefully handle a busy bus

I've been running with this patch for a while now, and while I've never
seen it trigger except with buggy hardware I think it is a cleaner way
to handle a busy bus. I had -EBUSY until about 10 minutes ago but -EIO
seems to be what most of the existing algo drivers will return in the
same circumstances.

Signed-off-by: Ian Campbell <icampbell@arcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: inline i2c_adapter_id
Jean Delvare [Thu, 28 Jul 2005 21:09:40 +0000 (23:09 +0200)]
[PATCH] I2C: inline i2c_adapter_id

We could inline i2c_adapter_id, as it is really, really short. Doing
so saves a few bytes both in i2c-core and in the drivers using this
function.

                                            before     after      diff
drivers/hwmon/adm1026.ko                     41344     41305       -39
drivers/hwmon/asb100.ko                      27325     27246       -79
drivers/hwmon/gl518sm.ko                     20824     20785       -39
drivers/hwmon/it87.ko                        26419     26380       -39
drivers/hwmon/lm78.ko                        21424     21385       -39
drivers/hwmon/lm85.ko                        41034     40939       -95
drivers/hwmon/w83781d.ko                     39561     39514       -47
drivers/hwmon/w83792d.ko                     32979     32932       -47
drivers/i2c/i2c-core.ko                      24708     24531      -177

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: tag super-i/o find functions __init
Jean Delvare [Wed, 27 Jul 2005 19:32:02 +0000 (21:32 +0200)]
[PATCH] hwmon: tag super-i/o find functions __init

Super-I/O find functions in hardware monitoring drivers can be tagged
__init as they are only called from functions themselves tagged __init.
Two of them (smsc47b397 and w83627ehf) already do, but the other four
of them (it87, pc87360, smsc47m1 and w83627hf) did not.

This saves a few bytes of memory after the drivers are loaded, 192 in
the case of the it87 driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: refactor message in i2c_detach_client
Jean Delvare [Wed, 27 Jul 2005 20:14:49 +0000 (22:14 +0200)]
[PATCH] I2C: refactor message in i2c_detach_client

We could refactor the error message 34 different i2c drivers print if
i2c_detach_client() fails in this function itself. Saves quite a few
lines of code. Documentation is updated to reflect that change.

Note that this patch should be applied after Rudolf Marek's w83792d
patches.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: W83792D documentation 3/3
R.Marek@sh.cvut.cz [Wed, 27 Jul 2005 09:25:28 +0000 (09:25 +0000)]
[PATCH] I2C: W83792D documentation 3/3

This patch adds documentation entry for W83792D chip.

Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: W83792D add hwmon class register 2/3
R.Marek@sh.cvut.cz [Wed, 27 Jul 2005 11:50:18 +0000 (11:50 +0000)]
[PATCH] I2C: W83792D add hwmon class register 2/3

This patch adds registration of hwmon class. Tested with help of i2c-stub.

Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: W83792D driver 1/3
R.Marek@sh.cvut.cz [Wed, 27 Jul 2005 11:43:47 +0000 (11:43 +0000)]
[PATCH] I2C: W83792D driver 1/3

I would like to announce support for W83792D chip. This driver was developed
by Winbond Electronics Corp. I added sysfs attributes callbacks infrastructure
plus various code fixes and codingstyle cleanups. I would like to thank Winbond
for supporting free software.

This patch is against 2.6.13rc3 plus hwmon-class and hwmon-split.
Separate patch for documantation and hwmon class register will follow.

Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Chunhao Huang <DZShen@Winbond.com.tw>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (9/9)
Jean Delvare [Tue, 19 Jul 2005 22:09:03 +0000 (00:09 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (9/9)

Move the definitions of i2c_is_isa_client and i2c_is_isa_adapter from
i2c.h to i2c-isa.h. Only hybrid drivers still need them.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (8/9)
Jean Delvare [Tue, 19 Jul 2005 22:05:33 +0000 (00:05 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (8/9)

Kill all uses of i2c_is_isa_adapter except for the hybrid drivers (it87,
lm78, w83781d). The i2c-isa adapter not being registered with the i2c
core anymore, drivers don't have to fear being erroneously attached to
it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (7/9)
Jean Delvare [Tue, 19 Jul 2005 22:02:32 +0000 (00:02 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (7/9)

Kill normal_isa in header files, documentation and all chip drivers, as
it is no more used.

normal_i2c could be renamed to normal, but I decided not to do so at the
moment, so as to limit the number of changes. This might be done later
as part of the i2c_probe/i2c_detect merge.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (6/9)
Jean Delvare [Tue, 19 Jul 2005 21:57:54 +0000 (23:57 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (6/9)

Kill all isa-related stuff from i2c_detect, it's not used anymore.

This is one major step in the directiom of merging i2c_probe and
i2c_detect. The last obstacle I can think of is the different way forced
addresses work between sensors and non-sensors i2c drivers. I'll deal
with that in a later patchset.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)
Jean Delvare [Tue, 19 Jul 2005 21:56:35 +0000 (23:56 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)

Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).

We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (4/9)
Jean Delvare [Tue, 19 Jul 2005 21:53:07 +0000 (23:53 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (4/9)

All ISA hardware monitoring drivers (including hybrid drivers) now have
a hard dependency on i2c-isa, so they must select I2C_ISA. As a result,
CONFIG_I2C_ISA doesn't need to be left visible to the user. The good
thing here is that users will stop complaining that some driver doesn't
work just because they forgot to compile or load i2c-isa.

At this point, all drivers are working again and the cleanup phase can
begin.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (3/9)
Jean Delvare [Tue, 19 Jul 2005 21:51:07 +0000 (23:51 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (3/9)

Convert the 10 ISA hardware monitoring drivers (it87, lm78, pc87360,
sis5595, smsc47b397, smsc47m1, via686a, w83627hf, w83627ehf, w83781d) to
explicitely register with i2c-isa. For hybrid drivers (it87, lm78,
w83781d), we now have two separate instances of i2c_driver, one for the
I2C interface of the chip, and one for ISA interface. In the long run,
the one for ISA will be replaced with a different driver type.

At this point, all drivers are working again, except for missing
dependencies in Kconfig.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (2/9)
Jean Delvare [Tue, 19 Jul 2005 21:48:43 +0000 (23:48 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (2/9)

Convert i2c-isa from a dumb i2c_adapter into a pseudo i2c-core for ISA
hardware monitoring drivers. The isa i2c_adapter is no more registered
with i2c-core, drivers have to explicitely connect to it using the new
i2c_isa_{add,del}_driver interface.

At this point, all ISA chip drivers are useless, because they still
register with i2c-core in the hope i2c-isa is registered there as well,
but it isn't anymore.

The fake bus will be named i2c-9191 in sysfs. This is the number it
already had internally in various places, so it's not exactly new,
except that now the number is seen in userspace as well. This shouldn't
be a problem until someone really has 9192 I2C busses in a given system
;)

The fake bus will no more show in "i2cdetect -l", as it won't be seen by
i2c-dev anymore (not being registered with i2c-core), which is a good
thing, as i2cdetect/i2cdump/i2cset cannot operate on this fake bus
anyway.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (1/9)
Jean Delvare [Wed, 20 Jul 2005 21:03:50 +0000 (23:03 +0200)]
[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (1/9)

Temporarily export a few structures and functions from i2c-core, because we
will soon need them in i2c-isa.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C hwmon: add hwmon sysfs class to drivers
Mark M. Hoffman [Sat, 16 Jul 2005 01:39:18 +0000 (21:39 -0400)]
[PATCH] I2C hwmon: add hwmon sysfs class to drivers

This patch modifies sensors chip drivers to make use of the new
sysfs class "hwmon".

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C hwmon: hwmon sysfs class
Mark M. Hoffman [Sat, 16 Jul 2005 01:38:08 +0000 (21:38 -0400)]
[PATCH] I2C hwmon: hwmon sysfs class

This patch adds the sysfs class "hwmon" for use by hardware monitoring
(sensors) chip drivers.  It also fixes up the related Kconfig/Makefile
bits.

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: Document on the W83627EHG chip
Jean Delvare [Wed, 27 Jul 2005 19:33:15 +0000 (21:33 +0200)]
[PATCH] hwmon: Document on the W83627EHG chip

Document the fact that the W83627EHG is compatible with the W83627EHF.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: kill client name lm78-j
Jean Delvare [Wed, 27 Jul 2005 19:30:16 +0000 (21:30 +0200)]
[PATCH] hwmon: kill client name lm78-j

Drop the separate client name for the LM78-J chip. This is really
only a later revision of the LM78, with almost no difference and
no difference the driver handles in any case.

This was the only client name that had a dash in it, and special care
had to be taken in libsensors because of it. As we plan to write a new
library soon, I'd like to get rid of this exception before we do.

As a nice side effect, it saves 876 bytes in lm78.ko.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] hwmon: soften lm75 initialization
Jean Delvare [Wed, 27 Jul 2005 19:28:28 +0000 (21:28 +0200)]
[PATCH] hwmon: soften lm75 initialization

The LM75 initialization is a bit agressive, it arbitrarily reconfigures
the chip. Make it only change the bit it needs. This is a port from
the 2.4 kernel version of the driver (lm_sensors).

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: max6875 code cleanup
bgardner@wabtec.com [Wed, 27 Jul 2005 17:43:14 +0000 (12:43 -0500)]
[PATCH] I2C: max6875 code cleanup

Remove an unused local variable and change the subclient name.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: max6875 documentation cleanup
bgardner@wabtec.com [Wed, 27 Jul 2005 17:43:21 +0000 (12:43 -0500)]
[PATCH] I2C: max6875 documentation cleanup

Fix a spelling error and change a sysfs name.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: add kobj_to_i2c_client
bgardner@wabtec.com [Wed, 27 Jul 2005 17:43:03 +0000 (12:43 -0500)]
[PATCH] I2C: add kobj_to_i2c_client

Move the inline function kobj_to_i2c_client() from max6875.c to i2c.h.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: cleanup of i2c-nforce2
Hans-Frieder Vogt [Sat, 23 Jul 2005 13:33:39 +0000 (15:33 +0200)]
[PATCH] I2C: cleanup of i2c-nforce2

attached is a small patch that removes unused code from i2c-nforce2 and
adds a single debug message. The patch is against 2.6.13-rc3-mm1.
I have tested the patch with 2.6.13-rc3: compiles cleanly and works as
without the patch (as expected).

Signed-off-by: Hans-Frieder Vogt <hfvogt@arcor.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: fix max6875 build error
Greg Kroah-Hartman [Wed, 27 Jul 2005 17:43:03 +0000 (12:43 -0500)]
[PATCH] I2C: fix max6875 build error

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: update max6875 documentation
bgardner@wabtec.com [Tue, 12 Jul 2005 18:21:50 +0000 (13:21 -0500)]
[PATCH] I2C: update max6875 documentation

Updates to the max6875 driver documentation.
This brings the documentation in sync with the code, which was recently
simplified.

This patch is based off 2.6.13-rc2-mm2.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years ago[PATCH] I2C: simplify max6875 driver
bgardner@wabtec.com [Tue, 12 Jul 2005 18:21:11 +0000 (13:21 -0500)]
[PATCH] I2C: simplify max6875 driver

This is an update to the max6875 driver.
It no longer does any detection, so the address must be forced on module load.
It only makes available the user EEPROM (read-only).

This patch is based off 2.6.13-rc2-mm2.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
19 years agoMerge watchdog driver updates
Linus Torvalds [Mon, 5 Sep 2005 13:00:45 +0000 (06:00 -0700)]
Merge watchdog driver updates

Automated merge from

master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog

failed due to duplicate different changes to Kconfig file. Manually fixed
up. Hopefully.

19 years agoMerge branch 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
Linus Torvalds [Mon, 5 Sep 2005 12:50:36 +0000 (05:50 -0700)]
Merge branch 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev

19 years ago/spare/repo/libata-dev branch 'iomap-try3'
Jeff Garzik [Mon, 5 Sep 2005 09:20:33 +0000 (05:20 -0400)]
/spare/repo/libata-dev branch 'iomap-try3'

19 years ago/spare/repo/libata-dev branch 'master'
Jeff Garzik [Mon, 5 Sep 2005 09:16:50 +0000 (05:16 -0400)]
/spare/repo/libata-dev branch 'master'

19 years agoMerge master.kernel.org:/home/rmk/linux-2.6-mmc
Linus Torvalds [Mon, 5 Sep 2005 07:18:09 +0000 (00:18 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-mmc

19 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 5 Sep 2005 07:17:25 +0000 (00:17 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

19 years agoMerge master.kernel.org:/home/rmk/linux-2.6-serial
Linus Torvalds [Mon, 5 Sep 2005 07:14:47 +0000 (00:14 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-serial

19 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Mon, 5 Sep 2005 07:12:58 +0000 (00:12 -0700)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

19 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 5 Sep 2005 07:11:50 +0000 (00:11 -0700)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

19 years ago[PATCH] s390: disconnected 3270 console
Martin Schwidefsky [Sat, 3 Sep 2005 22:58:06 +0000 (15:58 -0700)]
[PATCH] s390: disconnected 3270 console

Fix reboot with a disconnected 3270 console.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: spinlock corner case
Heiko Carstens [Sat, 3 Sep 2005 22:58:05 +0000 (15:58 -0700)]
[PATCH] s390: spinlock corner case

On s390 the lock value used for spinlocks consists of the lower 32 bits of the
PSW that holds the lock.  If this address happens to be on a four gigabyte
boundary the lock is left unlocked.  This allows other cpus to grab the same
lock and enter a lock protected code path concurrently.  In theory this can
happen if the vmalloc area for the code of a module crosses a 4 GB boundary.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: compat system calls
Heiko Carstens [Sat, 3 Sep 2005 22:58:04 +0000 (15:58 -0700)]
[PATCH] s390: compat system calls

Use TIF bit to tell if a process is running in 31 bit mode instead of checking
the addressing mode bits of the PSW.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: crypto driver update
Eric Rossman [Sat, 3 Sep 2005 22:58:03 +0000 (15:58 -0700)]
[PATCH] s390: crypto driver update

crypto device driver update:

 - Suppress syslog messages for some return codes.

 - Fix incorrect bounds checking in /proc interface.

 - Remove hotplug calls.

 - Remove linux version checks.

 - Remove device workqueue on module unload.

Signed-off-by: Eric Rossman <edrossma@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: pfault interrupt race
Martin Schwidefsky [Sat, 3 Sep 2005 22:58:02 +0000 (15:58 -0700)]
[PATCH] s390: pfault interrupt race

There is a race in pfault_interrupt.  That function gets called two times for
each pfault notification.  Once with a subcode of 0 to indicate that a real
page is not available and once with a subcode of 0x80 to indicate that the
page is present again.

Since the two external interrupts can be delivered on two different cpus the
order in which the two calls are made is unpredictable.  It is possible that
the subcode 0x80 interrupt is completed before the subcode 0x00 interrupt has
done the wake_up() call.

To avoid calling wake_up() on an already removed task structure proper task
structure reference counting is needed.  Increase the reference counter in the
subcode 0x00 interrupt before setting pfault_wait to zero and return the
reference after the wake_up call.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: reIPL fix and extern/static inline
Cornelia Huck [Sat, 3 Sep 2005 22:58:01 +0000 (15:58 -0700)]
[PATCH] s390: reIPL fix and extern/static inline

Common i/o layer changes:

- Collect the irb at the correct subchannel when waiting for the clear
  interrupt during subchannel cleaning befor reIPL - don't stop at the first
  interrupt that comes in.

- Change "extern __inline__" to "static inline".

- Remove unneeded qdio includes.

Signed-off-by: Cornelia Huck <cohuck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: 64 bit diag250 support
Horst Hummel [Sat, 3 Sep 2005 22:58:00 +0000 (15:58 -0700)]
[PATCH] s390: 64 bit diag250 support

Add support for diag 250 access to dasd devices for 64 bit kernels.  In
addition fix detach/attach for diag disks.  The VM control block needs to get
recreated by a call to mdsk_init_io.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: deadlock in dasd_devmap
Horst Hummel [Sat, 3 Sep 2005 22:57:58 +0000 (15:57 -0700)]
[PATCH] s390: deadlock in dasd_devmap

Reintroduce a read-only copy of the devmap features in the device struct.
This is necessary to solve a deadlock on the dasd_devmap_lock which is
acquired by dasd_get_features called from the dasd tasklet.  The current
implementation of devmap doesn't allow to call any devmap function from
interrupt or softirq context.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: debug feature changes
Michael Holzheu [Sat, 3 Sep 2005 22:57:58 +0000 (15:57 -0700)]
[PATCH] s390: debug feature changes

debug feature changes/bug fixes:

- Use get_clock() function instead of private inline assembly.

- Use 'struct timeval' instead of 'struct timespec' for call to
  tod_to_timeval().  Now the microsecond part of the timestamp is correct
  again.

- Fix a locking problem: when creating a snapshot of the current content
  of the debug areas, lock the entire debug_info object.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] s390: machine check handler bugs
Martin Schwidefsky [Sat, 3 Sep 2005 22:57:56 +0000 (15:57 -0700)]
[PATCH] s390: machine check handler bugs

The new machine check handler still has a few bugs.

1) The system entry time has to be stored in the machine check handler,

2) the machine check return psw may not be stored at the usual place
   because it might overwrite the return psw of the interrupted context,

3) the return address for the call to s390_handle_mcck in the i/o interrupt
   handler is not correct,

4) the system call cleanup has to take the different save area of the
   machine check handler into account,

5) the machine check handler may not call UPDATE_VTIME before
   CREATE_STACK_FRAME, and

6) the io leave path needs a critical section cleanup to make sure that the
   TIF_MCCK_PENDING bit is really checked before switching back to user space.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] xtensa: delete accidental file
Adrian Bunk [Sat, 3 Sep 2005 22:57:55 +0000 (15:57 -0700)]
[PATCH] xtensa: delete accidental file

This file seems to be an accident.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] xtensa: replace 'extern inline' with 'static inline'
Adrian Bunk [Sat, 3 Sep 2005 22:57:53 +0000 (15:57 -0700)]
[PATCH] xtensa: replace 'extern inline' with 'static inline'

"extern inline" doesn't make sense.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: fix x86_64 page leak
Jeff Dike [Sat, 3 Sep 2005 22:57:52 +0000 (15:57 -0700)]
[PATCH] uml: fix x86_64 page leak

We were leaking pmd pages when 3_LEVEL_PGTABLES was enabled.  This fixes that.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: fix advanced sysemu check
Bodo Stroesser [Sat, 3 Sep 2005 22:57:51 +0000 (15:57 -0700)]
[PATCH] uml: fix advanced sysemu check

cleanup and fix the check for advanced sysemu (PTRACE_SYSEMU_SINGLESTEP
option)

Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: allow host capability usage to be disabled
Bodo Stroesser [Sat, 3 Sep 2005 22:57:51 +0000 (15:57 -0700)]
[PATCH] uml: allow host capability usage to be disabled

Add new cmdline setups:
  - noprocmm
  - noptracefaultinfo
In case of testing, they can be used to switch off usage of
/proc/mm and PTRACE_FAULTINFO independently.

Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: skas0 stubs now check system call return values
Bodo Stroesser [Sat, 3 Sep 2005 22:57:50 +0000 (15:57 -0700)]
[PATCH] uml: skas0 stubs now check system call return values

Change syscall-stub's data to include a "expected retval".

Stub now checks syscalls retval and aborts execution of syscall list, if
retval != expected retval.

run_syscall_stub prints the data of the failed syscall, using the data pointer
and retval written by the stub to the beginning of the stack.

one_syscall_stub is removed, to simplify code, because only some instructions
are saved by one_syscall_stub, no host-syscall.

Using the stub with additional data (modify_ldt via stub)
is prepared also.

Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: increase granularity of host capability checking
Bodo Stroesser [Sat, 3 Sep 2005 22:57:49 +0000 (15:57 -0700)]
[PATCH] uml: increase granularity of host capability checking

This change enables SKAS0/SKAS3 to work with all combinations of /proc/mm and
PTRACE_FAULTINFO being available or not.

Also it changes the initialization of proc_mm and ptrace_faultinfo slightly,
to ease forcing SKAS0 on a patched host.  Forcing UML to run without /proc/mm
or PTRACE_FAULTINFO by cmdline parameter can be implemented with a setup
resetting the related variable.

Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: move libc-dependent startup and signal code
Gennady Sharapov [Sat, 3 Sep 2005 22:57:47 +0000 (15:57 -0700)]
[PATCH] uml: move libc-dependent startup and signal code

The serial UML OS-abstraction layer patch (um/kernel dir).

This moves all systemcalls from process.c file under os-Linux dir and join
process.c and process_kern.c files.

Signed-off-by: Gennady Sharapov <gennady.v.sharapov@intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: add host AIO support to block driver
Jeff Dike [Sat, 3 Sep 2005 22:57:46 +0000 (15:57 -0700)]
[PATCH] uml: add host AIO support to block driver

This adds AIO support to the ubd driver.

The driver breaks a struct request into IO requests to the host, based on the
hardware segments in the request and on any COW blocks covered by the request.

The ubd IO thread is gone, since there is now an equivalent thread in the AIO
module.

There is provision for multiple outstanding requests now.  Requests aren't
retired until all pieces of it have been completed.  The AIO requests have a
shared count, which is decremented as IO operations come in until it reaches
0.  This can be possibly moved to the request struct - haven't looked at this
yet.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: use host AIO support
Jeff Dike [Sat, 3 Sep 2005 22:57:45 +0000 (15:57 -0700)]
[PATCH] uml: use host AIO support

This patch makes UML use host AIO support when it (and
/usr/include/linux/aio_abi.h) are present.  This is only the support, with no
consumers - a consumer is coming in the next patch.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: build cleanups
Al Viro [Sat, 3 Sep 2005 22:57:43 +0000 (15:57 -0700)]
[PATCH] uml: build cleanups

Added missing include list to uml AFLAGS

Killed magic for stubs.  [So] - it was needed only because of messed AFLAGS
Switched segv_stubs.c to kernel CFLAGS sans profile, instead of user ones
Killed STUBS_CFLAGS - it's not needed and the only remaining use had been
gratitious - it only polluted CFLAGS

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: system call path cleanup
Jeff Dike [Sat, 3 Sep 2005 22:57:42 +0000 (15:57 -0700)]
[PATCH] uml: system call path cleanup

This merges two sets of files which had no business being split apart in the
first place.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: merge duplicated page table code
Jeff Dike [Sat, 3 Sep 2005 22:57:41 +0000 (15:57 -0700)]
[PATCH] uml: merge duplicated page table code

There is a lot of code which is duplicated between the 2 and 3 level
implementation, with the only difference that the 3-level implementation is a
bit more generalized (instead of accessing directly pte_t.pte, it uses the
appropriate access macros).

So this code is joined together.

As obvious, a "core code nice cleanup" is not a "stability-friendly patch" so
usual care applies.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: TLB operation batching
Jeff Dike [Sat, 3 Sep 2005 22:57:36 +0000 (15:57 -0700)]
[PATCH] uml: TLB operation batching

This adds VM op batching to skas0.  Rather than having a context switch to and
from the userspace stub for each address space change, we write a number of
operations to the stub data page and invoke a different stub which loops over
them and executes them all in one go.

The operations are stored as [ system call number, arg1, arg2, ... ] tuples.

The set is terminated by a system call number of 0.  Single operations, i.e.
page faults, are handled in the old way, since that is slightly more
efficient.

For a kernel build, a minority (~1/4) of the operations are part of a set.
These sets averaged ~100 in length, so for this quarter, the context switching
overhead is greatly reduced.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: remove duplicated exports
Jeff Dike [Sat, 3 Sep 2005 22:57:34 +0000 (15:57 -0700)]
[PATCH] uml: remove duplicated exports

Al Viro <viro@parcelfarce.linux.theplanet.co.uk> spotted a bunch of duplicated
exports - this removes them.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
19 years ago[PATCH] uml: mark SMP on UML/x86_64 as broken
Jeff Dike [Sat, 3 Sep 2005 22:57:33 +0000 (15:57 -0700)]
[PATCH] uml: mark SMP on UML/x86_64 as broken

Noticed by Al Viro <viro@parcelfarce.linux.theplanet.co.uk> - SMP on x86_64 is
fundamentally broken due to UML's reuse of the host arch's percpu stuff.  This
is OK on x86, but the x86_64 pda stuff just won't work for UML.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>